Malsam Tsang

What Malsam Tsang does

Malsam Tsang Structural Engineering is a privately held professional services firm founded in 2006 by Marc Malsam, PE SE and Ivan Tsang, PE, delivering structural engineering design services for residential, mixed-use, and commercial buildings across the western United States. The firm is licensed in six states (Washington, Arizona, California, Idaho, Oregon, and Texas) and operates from four offices — Seattle (headquarters), Wenatchee, Spokane, and Santa Monica — with a team of approximately 35 professionals including 30+ engineers and drafters. Core service lines cover single-family homes, multi-family residential, townhomes, mixed-use live/work and condominium projects, and commercial buildings including tenant improvements, community centers, hotels, offices, and retail spaces.

The firm delivers its work using Building Information Modeling (BIM) and Computer-Aided Design (CAD) tools, with specialized teams assembled per project composed of engineers, project managers, and drafters. It employs a project-based professional services revenue model with quote-based fees, generating revenue through design services spanning initial design meetings through construction-phase support. As of the most recent reporting period, the firm had completed 5,546 total projects since founding, with 907 active projects and 37,821 cumulative housing units designed, including engineer-of-record status on 15,000+ houses, 1,200+ townhomes, and 7,900+ multi-family units.

Malsam Tsang pursues a sales-led go-to-market built on long-term relationships with 80+ architecture firms, 45+ contractor companies, and 60+ developers, including named enterprise clients such as Pulte Homes, D.R. Horton, Taylor Morrison, Tri Pointe Homes, Legacy Group Capital, and Pollard Development Company. Distribution is regional and direct — engagement with architects, contractors, and developers through specialized project teams, with both onsite and remote coordination. Customer feedback in the data consistently emphasizes response time, code expertise, and design-to-constructability integration as the basis for sustained partnerships.

Name

Malsam Tsang

Legal name

Malsam Tsang Structural Engineering

Website

https://malsam-tsang.com

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

11–50 employees

Short description

Malsam Tsang is a privately held structural engineering firm founded in 2006 that designs residential, mixed-use, and commercial buildings across the western United States, serving architects, contractors, and national homebuilders from four offices in Washington and California.

Ownership category

akta.pro rank

Headquarters

HQ city

Seattle

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Structural Engineering Services: Professional engineering services delivering structural designs for residential, mixed-use, and commercial buildings. Revenue is generated through project-based fees for design services from initial meeting through construction phase.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Malsam Tsang provides structural engineering design services for residential, mixed-use, and commercial building projects across the western United States. Services span from initial design through construction-phase support, covering single-family homes, townhomes, apartments, condominiums, live/work units, retail spaces, hotels, and office buildings. The firm delivers structural plans and schematics using BIM and CAD tools, supported by 30+ engineers and drafters and professional licenses in six states.

Product overview

Malsam Tsang is a structural engineering firm that provides three core service offerings: Residential Structural Engineering (covering single-family homes, apartments, condominiums, custom homes, subdivisions, rowhouses, SEDUs, and townhomes), Mixed-Use Structural Engineering (combining residential and retail spaces including apartments/commercial, condominiums/commercial, and live/work units), and Commercial Structural Engineering (community centers, hotels, offices, and retail spaces). The company operates from offices in Seattle, Spokane, Wenatchee, and Los Angeles, serving Arizona, California, Idaho, Oregon, and Washington. As of their data, they are the engineer of record for over 15,000+ houses, 1,200+ townhomes, 7,900+ units, and 15,000+ units of multi-family construction, with 5,546 total projects completed since 2006.

Differentiator

Problem solved

Functional benefit

Products and services

• Residential Structural Engineering Services Comprehensive structural engineering services for single-family homes, multi-family residential buildings, apartments, condominiums, custom homes, residential subdivisions, rowhouses, Small Efficiency Dwelling Units (SEDUs), and townhomes throughout the western U.S. Services are delivered to architects, developers, and homebuilders from initial design through construction-phase support.
• Mixed-Use Structural Engineering Services Structural engineering for buildings that combine residential and retail uses under one roof, including apartments with commercial space, condominiums with commercial space, and live/work units. These projects transform neighborhoods with modern living options and integrated business spaces, and the firm handles the complex structural load combinations and urban planning requirements they demand.
• Commercial Structural Engineering Services Structural engineering for commercial building projects across the western U.S., including tenant improvement designs and new community centers, hotels, office buildings, and retail spaces. Services address complex structural loads, building code compliance, and cost-efficient material selection with coordination across multiple stakeholders.

Quantifiable outcome

• 37,821 units of housing designed, 5,546 total projects completed, 907 active projects

Named customers4 records

Segments6 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

25 partnerships are on record, tiered core, minor and major.

• Isaac Loebsack, PE (Principal)coreOthersPrincipal at Malsam Tsang, one of the firm's co-leaders alongside Marc Malsam and Ivan Tsang
• Marc Malsam, PE SE (Principal)coreOthersCo-founder and principal at Malsam Tsang, leads firm alongside Ivan Tsang with focus on structural engineering excellence
• Ivan Tsang, PE (Principal)coreOthersCo-founder and principal at Malsam Tsang, established partnership in 2006 with appreciation for modern architectural designs
• Scott Hufford, PE SE (Principal)coreOthersPrincipal at Malsam Tsang with structural engineering expertise
• Tony Macklin, PE SE (Principal)coreOthersPrincipal at Malsam Tsang with structural engineering expertise
• Boise CascademinorOthersSupplier partner providing building materials for structural projects
• Builders First SourceminorOthersSupplier partner for building materials
• Simpson Strong-TieminorOthersSupplier partner providing structural connectors and fasteners
• Weyerhaeuser CompanyminorOthersSupplier partner providing wood products for construction
• DR HortonmajorStrategic or Co-development PartnerMajor national homebuilder as client partner for residential structural engineering projects
• Pulte GroupmajorStrategic or Co-development PartnerMajor national homebuilder with 10-year relationship delivering single-family homes and townhomes
• Taylor MorrisonmajorStrategic or Co-development PartnerNational homebuilder partner for residential projects
• Tri Pointe HomesmajorStrategic or Co-development PartnerHomebuilder partner for residential structural engineering
• Legacy Group CapitalmajorStrategic or Co-development PartnerDevelopment partner delivering consistent and unrivaled service with highly skilled responsive team
• GrahammajorStrategic or Co-development PartnerConstruction partner for building projects
• Exxel PacificmajorStrategic or Co-development PartnerPacific Northwest construction partner
• Pavilion ConstructionmajorStrategic or Co-development PartnerConstruction partner for building projects
• Walsh ConstructionmajorStrategic or Co-development PartnerConstruction partner for building projects
• Bassetti ArchitectsmajorStrategic or Co-development PartnerArchitecture firm partner with ongoing structural engineering collaboration
• Dahlin GroupmajorStrategic or Co-development PartnerArchitecture firm partner for residential and commercial projects
• Conard Romano ArchitectsmajorStrategic or Co-development PartnerArchitecture firm partner for residential projects
• ACE Mentor ProgramminorOthersIndustry mentorship program supporting future architects, engineers, and construction professionals
• AIA (American Institute of Architects)minorOthersProfessional architecture association supporting the industry
• Habitat for HumanityminorOthersCharitable organization providing affordable housing
• Structural Engineers Association of Washington (SEAW)minorOthersProfessional association for structural engineers in Washington state

Scale indicators9 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• KPFF Consulting Engineers: Seattle-headquartered structural and civil engineering consulting firm with Pacific Coast offices serving building, transportation, and infrastructure markets — directly comparable in core structural engineering services and Pacific Northwest footprint.
• DCI Engineers: Seattle-based structural and civil engineering firm with multiple West Coast offices serving residential, commercial, and institutional clients — closely comparable in service mix and regional coverage to Malsam Tsang.
• Swenson Say Faget: Seattle-based structural engineering firm providing structural design for residential, commercial, and healthcare projects in the Pacific Northwest — directly comparable in service offering and Seattle market.
• PCS Structural Solutions: Seattle-based structural engineering firm providing structural design for commercial, healthcare, and residential buildings across the Pacific Northwest — directly comparable in core service offering and Seattle market.
• Coughlin Porter Lundeen: Seattle-based structural engineering firm providing structural design for residential, commercial, and mixed-use buildings across the Pacific Northwest — directly comparable in service offering, geography, and client base to Malsam Tsang.
• Degenkolb Engineers: San Francisco-headquartered structural engineering firm serving healthcare, education, commercial, and residential markets across the West Coast — comparable in structural engineering services and West Coast presence.
• ABKJ Engineers: Seattle-based structural and civil engineering firm providing building structural design across the Pacific Northwest — directly comparable in structural engineering services and Seattle market presence.
• Holmes Structures: San Francisco and Seattle-based structural engineering firm providing structural design for commercial, residential, and adaptive reuse projects — directly comparable in structural engineering services across the Pacific Coast.
• Magnusson Klemencic Associates (MKA): Seattle-based structural and civil engineering firm providing building design services across the Pacific Coast — directly comparable in structural engineering offering and Seattle market presence.
• Tipping Structural Engineers: Berkeley, California-based structural engineering firm serving residential, commercial, and institutional projects across the West Coast — comparable in structural design services and Pacific Coast geographic reach.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/malsam-tsang-structural-engineering

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Malsam Tsang